One line to the right. One line to the left, then a circle. That was all—just three lines in a circle.This bold picture book tells the story of the peace symbol—designed in 1958 by a London activist protesting nuclear weapons—and how it inspired people all over the world. Depicting the symbol's travels from peace marches and liberation movements to the end of apartheid and the fall of the Berlin Wall, Three Lines in a Circle offers a message of inspiration to today's children and adults who are working to create social change. An author’s note provides historical background and a time line of late twentieth-century peace movements.One line straight down. One line to the right. One line to the left, then a circle. That was all—just three lines in a circle.This bold picture book tells the story of the peace symbol—designed in 1958 by a London activist protesting nuclear weapons—and how it inspired people all over the world. Depicting the symbol's travels from peace marches and liberation movements to the end of apartheid and the fall of the Berlin Wall, Three Lines in a Circle offers a message of inspiration to today's children and adults who are working to create social change. An author’s note provides historical background and a time line of late twentieth-century peace movements.

    Tracy Hall, the inventor of a revolutionary diamond-making machine. Perfect for fans of Rosie Revere, Engineer, and On a Beam of Light: A Story of Albert Einstein.Before a diamond is a gem, it’s a common gray rock called graphite. Through an intense trial of heat and pressure, it changes into one of the most valuable stones in the world.Before Tracy Hall was an inventor, he was a boy—born into poverty, bullied by peers, forced to work at an early age. However, through education and experimentation, he became one of the brightest innovators of the twentieth century, eventually building a revolutionary machine that makes diamonds.From debut author Hannah Holt—the granddaughter of Tracy Hall—and illustrator Jay Fleck comes this fascinating in-depth portrait of both rock and man.

    But what if we took these big, hard-to-imagine objects and events and compared them to things we can see, feel and touch? Instantly, we'd see our world in a whole new way." So begins this endlessly intriguing guide to better understanding all those really big ideas and numbers children come across on a regular basis. Author David J. Smith has found clever devices to scale down everything from time lines (the history of Earth compressed into one year), to quantities (all the wealth in the world divided into one hundred coins), to size differences (the planets shown as different types of balls). Accompanying each description is a kid-friendly drawing by illustrator Steve Adams that visually reinforces the concept. By simply reducing everything to human scale, Smith has made the incomprehensible easier to grasp, and therefore more meaningful. The children who just love these kinds of fact-filled, knock-your-socks-off books will want to read this one from cover to cover. It will find the most use, however, as an excellent classroom reference that can be reached for again and again when studying scale and measurement in math, and also for any number of applications in social studies, science and language arts. For those who want to delve a little deeper, Smith has included six suggestions for classroom projects. There is also a full page of resource information at the back of the book.

    What is creating this revolting smell? The answer is gross: the river is full of poop. But the smell isn’t the worst problem. Every few years, cholera breaks out, and thousands of people die. Could there be a connection between the foul water and the deadly disease? One engineer dreams of making London a cleaner, healthier place. His name is Joseph Bazalgette. His grand plan to create a new sewer system to clean the river is an engineering marvel. And his sewers will save lives. Nothing stinky about that.

    As he reads the information unfolds, and with each new bit of knowledge, he travels--all the way to California to climb into the Redwood canopy. Crammed with interesting and accurate information about these great natural wonders, Jason Chin's first book is innovative nonfiction set within a strong and beautiful picture storybook.

    She grew up to discover a new firing technique that turned her pots black and shiny, and made them--and Maria--famous. This inspiring story of family and creativity illuminates how Maria's belief in sharing her love of clay brought success and joy from her New Mexico Pueblo to people all across the country.

    Like it's all fact. Like it's definitely what happened.But that's not necessarily true. History was crafted by the people who recorded it. And sometimes, those historians were biased against, didn't see, or couldn't even imagine anyone different from themselves.That means that history has often left out the stories of LGBTQIA+ people: men who loved men, women who loved women, people who loved without regard to gender, and people who lived outside gender boundaries. Historians have even censored the lives and loves of some of the world's most famous people, from William Shakespeare and Pharaoh Hatshepsut to Cary Grant and Eleanor Roosevelt.Join author Lee Wind for this fascinating journey through primary sources―poetry, memoir, news clippings, and images of ancient artwork―to explore the hidden (and often surprising) Queer lives and loves of two dozen historical figures.

    What she is, though, is a genius at math. When she grows up, she finds a way to first study math at a university (by sitting in, not actually enrolling) and then to teach it (by doing so for free). She also manages to do her own research into some of the most pressing math and physics problems of the day. And though she doesn't get much credit during her lifetime, her discoveries continue to influence how we understand the world today.Bestselling and award-winning Helaine Becker has crafted an engaging look at the life of Emmy Noether, a contemporary of Einstein's and one of the most influential, though little known, mathematicians of the twentieth century. Despite the obstacles she faced as a woman in a male-dominated field, and as a Jew who had to flee the Nazis, Emmy still accomplished a great deal. Artwork by Kari Rust uses touches of humor for emphasis and a golden glowing effect around Emmy to visually express her brilliance and ideas. Back matter includes a biographical note, explanations of complex mathematical concepts and suggestions for further reading. There are curriculum links to physics and mathematics --- subjects portrayed here as fascinating and exciting --- and poignant real-life character education lessons on courage and perseverance.

    "Once you are aware of the wonder and beauty of earth, you will want to learn about it," wrote Rachel Carson, the pioneering environmentalist. She wrote Silent Spring, the book that woke people up to the harmful impact humans were having on our planet.

    We are all dancing sunlight. The book is co-authored by award-winning M.I.T. professor Penny Chisholm, a leading expert on ocean science. A perfect addition to any library!

    Sibert Honor Award, explores the science and grisly history of U.S. Civil War medicine, using actual medical cases and first-person accounts by soldiers, doctors, and nurses.The Civil War took the lives of hundreds of thousands of Americans and left countless others with disabling wounds and chronic illnesses. Bullets and artillery shells shattered soldiers' bodies, while microbes and parasites killed twice as many men as did the battles. Yet from this tragic four-year conflict came innovations that enhanced medical care in the United States. With striking detail, this nonfiction book reveals battlefield rescues, surgical techniques, medicines, and patient care, celebrating the men and women of both the North and South who volunteered to save lives.

    But, as adolescents are all too aware, there's a tremendous downside: When we do this to groups of people it can cause great harm. Here's a comprehensive introduction to the science behind stereotypes that will help young people make sense of why we classify people, and how we can change our thinking. It covers the history of identifying stereotypes, secret biases in our brains, and how stereotypes affect our sense of self. Most importantly, it covers current research into how science can help us overcome our biases, offering hope for a future where stereotypes are less prevalent and the world is more fair for everyone.Written by award-winning author Tanya Lloyd Kyi, this timely and hopeful book addresses the issues of discrimination, racism, sexism, ableism and homophobia and offers concrete suggestions on how to make change. It uses scientific inquiry and loads of relatable and interesting examples to explore these uncomfortable topics in age-appropriate and engaging ways. Chapters, sidebars and colorful illustrations break the text into manageable chunks. Besides the many ways this book could be used to inspire frank and in-depth discussions on the importance of addressing stereotypes and bias, it also links to many science and social studies curriculum topics. Back matter includes an extensive list of sources, suggestions for further reading and an index.

    It's from a penguin, whose feathers are soaked in oil. Too tired to swim, too weak to stand, he's barely moving on the sand. João must save this little guy. Without his help, he'll surely die. João takes the penguin home. He cleans him, feeds him and nurses him slowly back to health --- and the pair develop a special bond. When the penguin is fully recovered, João knows it's time to return him to the wild where he belongs. But the penguin has other ideas ...Told in rhyming verse, this is the true story of João Pereira de Souza of Brazil, who cared for a Magellanic penguin that had been caught in an oil spill.

    CLICK'D pairs users based on common interests and sends them on a fun (and occasionally rule-breaking) scavenger hunt to find each other. And it's a hit. By the second day of school, everyone is talking about CLICK'D.Watching her app go viral is amazing. Leaderboards are filling up! Everyone's making new friends. And with all the data Allie is collecting, she has an even better shot at beating her archenemy, Nathan, at the upcoming youth coding competition. But when Allie discovers a glitch that threatens to expose everyone's secrets, she has to figure out how to make things right, even if that means sharing the computer lab with Nathan. Can Allie fix her app, stop it from doing any more damage, and win back the friends it hurt-all before she steps on stage to present CLICK'D to the judges?

    Growing up Jewish in Bialystok, Poland, in the late 1800s, young Leyzer Zamenhof was surrounded by languages: Russian, Yiddish, German, Polish, and many others. But the multiethnic Bialystok was full of mistrust and suspicion, and Leyzer couldn't help but wonder: If everyone could understand each other, wouldn't they be able to live in peace? So Zamenhof set out to create a new language, one that would be easy to learn and could connect people around the world. He published a book of his new language and signed it Dr. Esperanto -- "one who hopes." Mara Rockliff uses her unique knack for forgotten history to tell the story of a young man who saw possibility where others saw only barriers, while Polish illustrator Zosia Dzierzawska infuses every scene with warmth and energy, bringing the story of Esperanto to life.